recommendation 2.1 class d amp board with high-pass filter for L&R TPA3255 or similar

[richie_b]

Hi audio fans!
My name is Richie, i'm from Berlin/Germany and new here.
Since people use the forums less, its geting difficult to get informations. Also in my favorite german "hifi-forum" people are becoming more and more inactive.
But here it seems more active.
For my double 18" bicycle trailer bandpass subwoofer i used a class d car amp Alpine MRX-F30 with additional head speaker cabinets. It worked well but its defect and gone.
Now i'm looking for alternatives.

I also builded some mobile music speakers a view years ago with TDA and TPA boards.
My favorite is the AIYIMA TPA3116D2 2.1 board with switchable high pass filter for L&R channel out. Its perfect for 2.1 Setups.

Now my question is can you recommend a 2.1 board for ~50V that have low-pass filter for subwoofer AND high-pass filter for L&R?
And it has to be more efficient than a car class d 4ch amp.

Here my trailer aka "spongy":

 

[staticV3]

Hi @richie_b! Welcome to ASR.

The closest thing I could find is this: https://store.sure-electronics.com/product/756

2x100W+1x200W
Fully configurable per-channel DSP via SigmaStudio
Up to 39V supply voltage
Efficiency specced at ~90% (not sure how your car Amp compares)

The only snag is that 6Ω minimum load impedance, which may get even worse when bridging two of the four channels for Sub output.

Rad trailer BTW!